Thomas j



(No Model.)

T. J. FORD.

OVEN FOR VAPOR STOVES. No. 337,757. Patented Mar. 9, 1886.

WITNESS, //v VENTUR.

UNITED STATES PATENT OFFICE.

THOMAS J. FORD, OF GENEVA, OHIO, ASSIGNOR OF ONE-HALF TO FRANK S.TURNER, OF SAME PLACE.

OVEN FOR VAPOR-STOVES.

SPECIFICATION forming part of Letters Patent No. 337,757, dated March 9,1886.

Application filed May 7, 1885. Serial No. 164,633. (No model.)

To aZZ whom it may concern.-

Be it known that I, THOMAS J. FORD, of Geneva, in the county ofAshtabula and State of Ohio, have invented certain new and usefulImprovements in Ovens for Vapor-Stoves,

of which the following is a specification.

This invention relates to improvements in ovens for vaporstoves, and hasfor its object to provide a means for changing and controlling the heat,so that it may be shut off from the bottom,and conducting it over andinto the top of the oven, thus providing for baking the top as well asthe bottom of bread, Ste.

These improvements consist of ducts or fines and dampers in combinationwith the oven, as hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of an ovenhaving my improvements attached, and having one corner broken away toshow interior construction. Fig. 2 is a vertical section. Fig. 3 is aview of the bottom of the oven. Fig. 4 is a crosssection.

A is the outside casing of the oven, in the bottom of which there is anopening, a, which sets over the burner. Ashort distance above this isplaced a second bottom, a, in which is made'a grating, provided with aslide, B, for the grating, when desired. In the drawings the gratingshown consists of round holes or openings covered with a circular plate,B,

also having holes to correspond with those in the bottom plate, a, saidplate B being pivoted at the center, and made to turn, for closing theopenings, by means of a rod, 1), passing out through the front wall ofthe casing.

Instead of a circular plate and round openings, a straight or squareplate with slotted openings may be used for the same purpose.

The space between these two bot-toms is connected at the ends to endflues, c 0, formed by end plates arising from said second bottom,

a, to within about one inch of the top of the oven, the purpose of whichwill be hereinafter shown.

D is a third bottom placed a short distance above the second bottom, a,and the full space within the baking-chamber of the oven. This bottom isre-enforced with a plate, (I, secured to the under side, for the purposeof protecting the said bottom from being burned by the intense heat fromthe burner. At each end of said bottom D are made a row of openings,

e 6, over which are placed sliding plates E, provided with correspondingopenings, for covering and uncovering the aforesaid openings e 6, saidplates having rods ff, for operating them.

In the back and top of the oven is made a lining, H, forming a back, andan upper flue, designed for creating a draft downward from the endlines, as hereinafter shown. Open ings h are made through said lining atthe bottom of said flue, and openings h are made in the top of the ovennear the front corner.

In the front side of the casing A is provided a damper, G, communicatingwith the space between the second and third bottoms, the use of whichwill be shown in the descrip tion of the operation.

I are movable shelves commonly used in ovens.

The operation of this oven is as follows: In the first place the gratingB is thrown open, while the slides E and dampers G are closed. Thisallows the heat to pass directly through the grating to the bottom D.This will do the baking on the bottom. Then when this is sufficieutlydone the grating is closed and the slides E and dampers G are '80opened. This causes the heat to be deflected and carried to theendfines, as shown, in the direction of the arrows; thence over into thetop of the oven, and downward over the top of the bread or otherarticles in the oven; thence through openings h at the lower rear sideof the oven, and upward through back flue, and out at openings h in topof oven. Air is also admitted at the same time through the dampers G,which tends to cool the bot- 0 tom while the top baking is going on.

Having described my invention, I claim- The combination, with the ovenA, provided with open bottom a, of the second bottom, a, end plates, 00, attached thereto, having the grating and grating-cover B, andconnected with the end fines, c c, the bottom D, provided with theopenings e e and slide-covers E, and the back and top lining, H, havingopenings 71 and h, all constructed and operat- 10c ing substantially asand for the purpose specified.

THOMAS J. FORD. Vitnesses:

E. W. LAIRD, GEO. W. TIBBI'rTs.

